Revert "SERVER-50442 Remove ensureIndex shell function This commit also replaces all the usages of ensureIndex() with createIndex() in JS tests and JS shell"

This reverts commit e69c967ff8b53634770438dfe9a5c7d13548351b.

2 files changed, 4 insertions, 4 deletions

diff --git a/jstests/multiVersion/libs/data_generators.js b/jstests/multiVersion/libs/data_generators.js
index a46fbe8439a..4a30ca2e463 100644
--- a/jstests/multiVersion/libs/data_generators.js
+++ b/jstests/multiVersion/libs/data_generators.js
@@ -350,7 +350,7 @@ function DataGenerator() {
 //     var nextIndexDocument = generator.next();
 //     var nextIndexSpec = nextIndexDocument["spec"];
 //     var nextIndexOptions = nextIndexDocument["options"];
-//     db.createIndex(nextIndexSpec, nextIndexOptions);
+//     db.ensureIndex(nextIndexSpec, nextIndexOptions);
 // }
 //
 function IndexDataGenerator(options) {
diff --git a/jstests/multiVersion/libs/verify_collection_data.js b/jstests/multiVersion/libs/verify_collection_data.js
index ea2ef2f3f35..10b26534ccc 100644
--- a/jstests/multiVersion/libs/verify_collection_data.js
+++ b/jstests/multiVersion/libs/verify_collection_data.js
@@ -35,10 +35,10 @@ createCollectionWithData = function(db, collectionName, dataGenerator) {
     var numIndexes = 0;
     while (dataGenerator.indexes.hasNext()) {
         var nextIndex = dataGenerator.indexes.next();
-        print("collection.createIndex(" + JSON.stringify(nextIndex.spec) + ", " +
+        print("collection.ensureIndex(" + JSON.stringify(nextIndex.spec) + ", " +
               JSON.stringify(nextIndex.options) + ");");
-        var createIndexResult = collection.createIndex(nextIndex.spec, nextIndex.options);
-        assert.commandWorked(createIndexResult);
+        var ensureIndexResult = collection.ensureIndex(nextIndex.spec, nextIndex.options);
+        assert.commandWorked(ensureIndexResult);
         numIndexes++;
     }